Combined boring cutter bar device

Abstract

The combined boring cutter bar device comprises a boring cutter bar and a movable sleeve, a boring cutter is detachably fixed to the outer wall of the upper end of the boring cutter bar, the position of the movable sleeve located below the boring cutter is adjustably installed on the boring cutter bar, a boring cutter sleeve is fixed to the outer wall of the movable sleeve, and the boring cutter is installed on the boring cutter sleeve. And the distance between the plurality of boring cutters is adjusted by adjusting the fixed position of the movable sleeve on the boring cutter rod. According to the utility model, the structure of the boring cutter bar is optimized, and the movable sleeve provided with the plurality of boring cutter sleeves is adjustably fixed on the boring cutter bar, so that convenience is provided for adjusting the distance between the boring cutter arranged on the boring cutter sleeves on the movable sleeve and the boring cutter arranged on the boring cutter bar; the defect that the production schedule is affected due to low machining efficiency of a traditional boring cutter rod which only can be provided with one boring cutter is overcome, the machining efficiency and the machining precision of equal-diameter holes and stepped holes are greatly improved, the production efficiency is improved, the production cost is reduced, and the use value is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining technique, concretely relates to a combined boring bar device. BACKGROUND

[0002] The boring bar of the existing boring bar is usually provided with one boring tool. According to the machining requirement of the workpiece, the workpiece is bored by installing the boring tools corresponding to rough boring, semi-precision boring and precision boring, so as to be machined with corresponding precision. The defect of the boring bar is that one boring tool can be installed each time, and only one boring tool can be machined, so when different precision machining and multi-radius variable-diameter workpiece machining are needed, different precision and different radius need to be machined by multiple processes, thereby the production efficiency is restricted, and therefore, it is necessary to improve the above problems. SUMMARY

[0003] The utility model solves the technical problem: provide a combined boring bar device, through optimizing boring bar structure, the boring bar is fixed with the movable sleeve of installing multiple boring tool cover on the position, the adjustment of the boring tool on the movable sleeve and the boring tool spacing on the boring bar is provided with the convenience, the processing efficiency of the traditional boring bar that can only install one boring tool is low, and the production progress is affected, the processing efficiency and the processing precision of the equal-diameter hole and the stepped hole are improved greatly, the production efficiency is improved, the production cost is reduced, and the use value is high.

[0004] The utility model adopts the technical scheme: combined boring bar device, including boring bar and movable sleeve, the boring bar upper end outer wall is detachable and is fixed with boring tool, and the movable sleeve position below boring tool is adjustable and is installed on the boring bar, movable sleeve outer wall is fixed with boring tool cover, and boring tool is installed on boring tool cover, and the spacing adjustment of multiple boring tools is realized through adjusting the fixed position of movable sleeve on boring bar.

[0005] Among them, the upper segment both sides outer wall of boring bar is provided with guide groove, and the guide strip symmetrically arranged on the inner wall of movable sleeve is matched with the corresponding guide groove, a plurality of top wires that fix movable sleeve on boring bar are screw connected on movable sleeve.

[0006] Further, the outer circumferential wall of boring bar is symmetrically provided with long groove which is parallel to guide groove and is distributed at 0°, and the inner end of top wire abuts against the long groove surface of corresponding position.

[0007] Further, the boring tool is inserted and installed in the boring tool cover, and the boring tool is fixed on the boring tool cover by a plurality of fixing bolts screw connected on the outer wall of boring tool cover.

[0008] Further, a plurality of boring tool covers are fixed on the movable sleeve, and the boring tool covers are sequentially increased from top to bottom.

[0009] Further, the mobile sleeve is fixed with a boring tool sleeve.

[0010] Further, the outer wall of the lower section of the boring tool rod is provided with a chip removal groove for facilitating metal chip removal.

[0011] Further, the mobile sleeve is provided with a rounded corner at the upper and lower ends.

[0012] Compared with the prior art, the present application has the following advantages:

[0013] 1. The boring tool rod structure is optimized, the mobile sleeve is fixed with multiple boring tool sleeves at adjustable positions, the boring tool on the mobile sleeve and the boring tool on the boring tool rod are adjusted conveniently, and the low machining efficiency of the traditional boring tool rod with only one boring tool is improved.

[0014] 2. The boring tools with different machining accuracies are installed on the multiple boring tool sleeves of the mobile sleeve, the equal-diameter holes with large machining allowance and high machining accuracy are machined at one time, the tool is not frequently replaced, and the market competitiveness is greatly improved.

[0015] 3. The present application has the advantages of simple structure, novel design, convenient and fast position adjustment of the mobile sleeve, good stability during boring, greatly improved machining efficiency and machining accuracy of the equal-diameter holes and stepped holes, improved production efficiency, reduced production cost, and high use value. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure diagram of the mobile sleeve with multiple boring tool sleeves is shown in the present application.

[0017] Figure 2 The structure diagram of the mobile sleeve with one boring tool sleeve is shown in the present application.

[0018] Figure 3 The fitting cross-sectional structure diagram of the mobile sleeve and the boring tool rod is shown in the present application. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described below. Figures 1-3 The technical solutions in the embodiments of the present application will be described below.

[0020] It should be noted that, in this article, unless otherwise stated, it is understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In this article, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations. The element defined by the statement "includes a..." does not exclude the presence of another identical element in the process, method, article or device that includes the element.

[0022] The combined boring bar device, as shown in Figures 1-3 The boring bar 1 has a detachable boring cutter fixed on the outer wall of the upper end, and a boring cutter sleeve 3 is also fixed on the outer wall of the upper end of the boring bar 1. The boring cutter is fixed on the boring cutter sleeve 3. The movable sleeve 2 is adjustably installed on the boring bar 1 below the boring cutter. The outer wall of the movable sleeve 2 is fixed with a boring cutter sleeve 3, and the boring cutter is installed on the boring cutter sleeve 3. The spacing between the boring cutter on the boring bar 1 and the boring cutter on the movable sleeve 2 is adjusted by adjusting the fixed position of the movable sleeve 2 on the boring bar 1. In the above structure, the structure of the boring bar 1 is optimized, and the movable sleeve 2 with multiple boring cutter sleeves 3 is adjustably fixed on the boring bar 1, which provides convenience for adjusting the spacing between the boring cutter on the movable sleeve 2 and the boring cutter on the boring bar 1. The boring cutter sleeve 3 solves the problem of low machining efficiency and affects the production progress caused by the boring bar 1 which can only install one boring cutter;

[0023] As shown in Figure 3 The outer walls of the upper sections of the boring bar 1 are provided with guide grooves 4, and the guide strips 5 symmetrically arranged on the inner wall of the movable sleeve 2 are adapted to the corresponding guide grooves 4. A plurality of top screws 9 are threadedly connected to the movable sleeve 2 to fix the movable sleeve 2 on the boring bar 1. Specifically, in order to ensure the fixing reliability of the movable sleeve 2 and the boring bar 1, long grooves 6 are symmetrically provided on the outer circumferential wall of the boring bar 1, which are parallel to the guide grooves 4 and are distributed at 90°. The inner end of the top screw 9 abuts against the groove surface of the corresponding long groove 6.

[0024] The fixed structure of the boring bar and the boring bar sleeve 3 is as follows: the non-blade end of the boring bar is inserted into the boring bar sleeve 3, and the boring bar is fixed on the boring bar sleeve 3 through a plurality of fixing bolts 7 threaded on the outer wall of the boring bar sleeve 3, so that the boring bar is convenient and fast to disassemble and replace, and the fixed structure is stable and reliable.

[0025] As shown in Figure 1 The mobile sleeve 2 is fixed with a plurality of boring bar sleeves 3 that increase sequentially from top to bottom, so that the boring bar installed on the plurality of boring bar sleeves 3 forms a rotary radius that increases sequentially from top to bottom, realizes machining with large machining allowance and gradually improved boring precision, and can also realize one-time forming machining of a stepped hole, greatly improving the boring machining efficiency of the equal-diameter hole or the stepped hole; by installing boring bars with different machining precisions on the plurality of boring bar sleeves 3 on the mobile sleeve 2, the equal-diameter hole can be machined in one time with large machining allowance and high machining precision, without frequent tool replacement, greatly improving the market competitiveness.

[0026] As shown in Figure 2 The mobile sleeve 2 is fixed with one boring bar sleeve 3, which can be used for machining an equal-diameter hole or a stepped hole, and has a large boring bar spacing adjustment range.

[0027] The boring bar rod 1 is provided with a metal chip discharge groove 8 on the outer wall of the lower segment of the boring bar rod 1, which facilitates the discharge of metal chips.

[0028] The mobile sleeve 2 is provided with a round corner at the upper and lower end edges, so as to avoid the accumulation of molten metal at the joint position of the mobile sleeve 2 and the boring bar rod 1, which causes poor chip discharge. Since the boring bar on the boring bar rod 1 is a certain distance away from the boring bar rod 1, under the action of centrifugal force, the position of the generated metal chips is along the outer wall of the mobile sleeve 2 and is smoothly discharged.

[0029] The technical solution has the advantages of simple structure, novel design, convenient and fast position adjustment of the mobile sleeve 2, good stability during boring, greatly improved machining efficiency and machining precision of the equal-diameter hole and the stepped hole, improved production efficiency, reduced production cost, and high use value.

[0030] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0031] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A modular boring bar apparatus, characterized by: Including boring bar (1) and mobile cover (2), the boring bar (1) upper end outer wall is detachable fixed boring cutter, and the mobile cover (2) position below boring cutter is adjustable installation on boring bar (1), the mobile cover (2) outer wall is fixed boring cutter cover (3), and boring cutter is installed on boring cutter cover (3), and the spacing adjustment between multiple boring cutters is realized by adjusting the fixed position of mobile cover (2) on boring bar (1); The boring bar (1) upper segment both sides outer wall is made with guide groove (4), and the guide strip (5) symmetrically arranged on the inner wall of mobile cover (2) is adapted to the corresponding position of guide groove (4), the mobile cover (2) is screw connected with multiple top wire (9) for fixing mobile cover (2) on boring bar (1); The boring bar (1) outer circumferential wall is symmetrically made with long groove (6) which is parallel to guide groove (4) and is distributed at 90 °, and the inner end of top wire (9) is abutted on the groove face of corresponding position long groove (6).

2. The modular boring bar assembly of claim 1 wherein: The boring cutter is inserted into boring cutter cover (3), and is fixed on boring cutter cover (3) by multiple fixed bolts (7) which are screw connected on the outer wall of boring cutter cover (3).

3. The modular boring bar assembly of claim 2 wherein: The mobile cover (2) is fixed with multiple boring cutter covers (3) which are sequentially increased from top to bottom.

4. The modular boring bar assembly of claim 2 wherein: The mobile cover (2) is fixed with one boring cutter cover (3).

5. The modular boring bar assembly of any of claims 1-4, wherein: The boring bar (1) lower segment both sides outer wall is made with chip groove (8) for facilitating metal chip discharge.

6. The modular boring bar assembly of claim 5 wherein: The mobile cover (2) upper and lower end edge position is made with round corner.

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